Ore-concentrator.



J. LAMPERT.

ORE CONCENTRATOR. APPLICATION FILED IuLY 29. I9II.

1,1 92,534.A Patented July 2.5, 1916.

, a sIIEIiTs-sIIET I.

In 'den/for mg :www: ners/vs m., puma Lum: .v/Imunfrmv. a r:

J. LAMPERT.

ORE CONCENTRATOH.

APPLICATION I'ILED IULY 29, I9ll. 1,1 92,534. Patented July 25,1916.

38H EET 2.

J. LAMPERT.

ORE CONCENTRATOR. APPucAHoN mso 1uLY29. 191|.

Patented July 25, 1916.

3 SHEETSfIEET 3.

JACOB LAMPERT, OF RAPID CITY, SOUTH DAKOTA.

ORE-CONCENTBATOR.

l,ll929,534.

Specification of Letters Patent.

Patented July 25, 1916.

Application filed July 29, 1911. Serial No. 641,389.

To all Iwhom t may concern.'

Be it known that l, JACOB LAMPERT, a citi- Zen of the United States, residing at Rapid City, in the county of Pennington and State of South Dakota, have invented new and useful Improvements in Ore-Concentrators, of which the following is a speciiication.

An object of this invention is to produce a very simple, cheap, light and strong ore concentrator of superior efficiency and of superior adjustability to varying ores, which can be easily transported over mountain trails and can be readily taken apart and put together to facilitate transportation.

Another object of the invention is to give great rigidity and long life to the concentrating table in connection with a very light construction; also to improve and simplify the operating parts; to improve the adjustnient, and to distribute the reciprocating force in a direct manner throughout the table body.

The invention relates to the construction of various parts of the apparatus and in practical use the surface of the table may be of any approved form. Said table preferably has a riliied surfacerfornied by grooving the deck or by fastening rillles thereto as may be preferred.

Another object of the invention is to minimize friction of the parts whereby the table is mounted.

lt is well known that in the art of concentrating very slight differences of operation lead to vastly different results. The separation is effected by the forces of gravity, inertia and momentum and the power is applied with rapid reciprocations so that a slight variation of results at each reciprocation may cause great losses or saving in the course of 24 hours run.

An object of this invention therefore is to so mount the table that the reciprocating force may be applied uniformly at a determined point and the adjustment of the table may be effected throughout a wide range without variation of the reciprocatory movement but with great variation in the final results. j

An improved feature of this invention resides in a tri-support, the table being pivotally mounted at one supporting point at one side of the table and adjustably supported at two widely separated points on the other side of the table by links swung by their upper ends the pivotal support being below the surface of the table and the links being swung from above the surface of the table and the power being applied at the point of pivotal support.

Details of the invention may be carried out 1n various forms and I do not limit the construction to the exact form shown.

The accompanying drawings illustrate the invention.

Figure l is a plan of a concentrator constructed in accordance with this invention. A portion of the table is broken away to expose parts of the frame. Fig. 2 is an eleva tion viewed from the head of the concentrator. The table is broken to show interior construction. Fig. 3 is an enlarged broken fragmental detail of the tableand the ad justing hangers viewed from line ma, Fig. l. Fig. 4 is an enlarged fragmental plan detail of the head motion or table vibrating mechanism. Parts are broken away to contract the view and to expose parts otherwise hidden. Fig. 5 is a fragmental mid-sectional detail taken on line m5, Figs. l, 4 and 6; the operative parts being shown in solid lines at the end of the back stroke and in broken lines at the end of the forward stroke. Fig. 6 is a fragmental broken transverse elevation; the head motion fra-ine being in section on line w, Figs. l, 4 and 5. Fig. 7 is a detail partly in section on line m7, Figs. 4 and 5, illustrating the universal joint between the table and the vibrating mechanism. Fig. 8 is a view of the table from the tailings discharge side. Fig. 9 is an enlarged fragmental sectional detail illustrating the table adjusting device. Section is taken on line m9, Fig. l looking in the direction of the arrows. Fig. l is a sectional detail of the head wash water-box from line :1210, Fig. 1. Fig. ll is a frag mental detail illustrating the discharges ofA the feed box and also the water box.

ln the dran/'ings the table l is shown pro-Y vided at its upper end with a feed box 2 and at its head-motion side with the upstanding flange 3 and on the concentrates discharge side with the smooth surface 4; the top sur face of the table being provided with a linoleum sheet on which are fastened the practically level topped riflles t3 that extend from the upstanding flange 3 toward the concentrates discharge side and diminish in depth from the flange 3 to the smooth surface 4 on to which the wash water from the stationary wash water box 7 is allowed to flow through the slots 8 controlled by gates 9.

The feed-box 2 is supplied with pulp through the feedchute 10; and said feedbox 2 and the head wash water box 11 are also supplied with vertical slots 8 and gates 9 to control the flow of pulp and wash water to the head'of the table. rllhe wash water is supplied to the wash water boxes by the valve-controlled pipes 12 and 13. The smooth surface 4 is inclined upward away from the tips 15 of the riffies by means of a wedge-like strip 14 which'may be fastened underneath the linoleum sheet 5 to raise the edge of the table surface about three-eighths of aninch above the level'of the tops of the rifiles.

The construction just described is old and is not claimed herein.

r1`he bodyof the table is composed of a deck 16 and joists 17, that run transversely with relation tothe riflies and are mounted on diverging angle-iron Vthrust beams 18 which are fastened to the joists by suitable means as the screws 19 that pass through the top horizontal flanges 18. The adjacent ends of the langle-iron beams 18 practically abut together at the head-motion side of the table at the vcenter of gravity of said side, and said beams diverge thence to the concentrates discharge side of the table where they terminate at points practically equi-distant from the center of gravity of the concentrates discharge side of the table.

The abutting ends of the thrust beams 118 Yare connected by a cross-tie 2O which may be a piece of strap-iron riveted to the upright flanges of the beams 18. Said tie 2O is provided centrally with a hole 21 through which the threaded connecting'rod 22, having a head 23 is inserted, extending thence through thev post 24; and the head lever 25 is adj ustably secured by a hand nut 26 screwed onto the threaded connecting rod, and acting on a rocking washer ,27 to adjust the tension of the return spring 28 which is seated in the spring-holding blocks 29, 30 which are riveted respectively to the cross-tie 2O and the post 24. The spring 28 is a compression spring and its tendency is to resiliently hold the table 1 away from the head post 24. The function of the spring is to force the table forward in the usual way.

The head-motion toggle device is of the usual construction comprising the two links 31, 32 acting on the toggle shaft 33 which receives up and vdown movement from pitmen 34 operated by the eccentric 35 on the shaft 36 driven by any suitable power. Said shaft is mounted in boxes 37 on channel-iron l sills 38V that are fixed byl bolts 39 to any suitable foundation 40 which may be of concrete, timber or any other suitable material. On said sills 38 are bolted or riveted standards 41 carrying a transverse shaft 42 on which is mounted `a 'sheave 43l that carries a longitudinal'rounded rail 44 that may be a roller'journaled in a box 45 that is apiece lthe beams 18.

of channel-iron riveted to the top flanges of By the arrangement of the sheave 43 and rail 4 4 the table is pivotally and reciprocatingly supported at the headmotion side of the table so that the table may be tilted in any direction while being' reciprocated.

The axes of the reciprocating pivotal elements are normal to each other and the axis of the one which is fixed to the table extends along a vertical plane that bisects the angle between the beams so that the pivotal point of support is practically in the balancing line between'the feed end and tailings discharge end of the table.

At theconcentrates discharge side of the table the supporting brackets 46 having notches 47, 47 in their under edges are fixed by threaded stems 48 extending down through the table and through the top flange 18 of the angle-iron beams 18 and secured by the nuts 49. Said brackets 46 project from the concentrates discharge side of the table in parallelism with the said line and with the traces of motion of the table, said brackets being in parallelism with the extended axis of the rod 22. Said brackets are supported by links 50, hanging in notches 51, 51 on the upper edges of arms 52 of hangers that have vertically threaded stems 53 which slide through bushings 54 in a Y support 55 which may be a horizontal gas pipe carried by gas pipe posts 5G. Said threaded stems 53 are adjustably supported by the handnuts 57 working on the top of the support 55. The links 50 are thus raised and lowered to varyithetable inclination. Said arms 52 are alined with the arms 4G and the notches 47 and 5l correspond in number, one of the notches 47 being in vertical alinement with one of the notches 51 and the other notches 47 being out of vertical alinement with the other notches 51, so that when the links 50 are respectively in alinement with the notches 47 and 51 said links will be vertical; and they may be adjusted out of vertical position by moving their lower ends into the notches 47 or their upper ends into the notches 51; or by both such adjustments. By this means the effectivelength of the links and also the inclination ofthetable may be altered. 1f one of the links, as shown inFig. 9, shall be shifted from the position shown in Fig. 9 by swinging the lower e'nd of the'link 50 Vout of the notch 47 and into the intermediate notch 47 the effective length of said link 50 will be decreased and that side ofthe table will be slightly raised. This effect may be increased by shifting the lower end of theV link to the outer notch 47,,fand if it is desired-'to still greater increase the inclination and shorten the effective length ofthe link the upper end of said link may likewise be shifted into one or the other notches shown at the left in Fig. 9. By this means very delicate adjustments of the table may be effected and by turning the nut 57 adjustment of the inclination of the table is made independently of the effective length of the links. It is thus seen that the adjustment of the up-and-down movement is attained by a longitudinal shifting of the connection of one end of each link with either the table or the frame support or by reverse longitudinal shifting of both points of connectionV of each link.

TWhen the table is at rest the spring 28 holds the table in such position that the links 50 will be vertical, as shown in Fig. 97 if they are seated in the notches 5l and 4:7. On the back stroke of the table, the concentrates discharge side of the table will he slightly lowered and on the forward stroke the concentrates discharge side of the table will be slightly raised. rlhis movement is effected smoothly and without jar by the co-action of said links and the pivotal mounting at the head-motion side comprising the elements 4:3, 44: hereinbefore described. By adjusting the hand nuts 57 the inclination of the table can be varied at the will of the operator so that the amount of up and down n'iovenient of the table may be regulated relative to the to and fro movement and thus cause less or greater up and down movement as desired or required by the different ores under treatment.

The table is inclined downward in theV usual manner from the feed-box to the tailings discharge end 58, so that the gangue will flow by gravity across the riiiles from the feed-box to the tailings discharge end while the concentrates are being caught by the level topped rifl'les and shifted by inertia and friction to the smooth surface 4; as the table is reciprocated.

rlhe adjustments of the table required in operating the concentrator with different ores are various; it being desirable with coarser gangue to cause a comparatively rapid flow toward the tailings discharge end 5S, and vice versa, with finer gangue and slimes; and it is sometimes desirable to increase or decrease the inclination of the smooth surface e. All these adjustments are readily made by appropriately turning one or both of the hand nuts thus acting on the links to raise or lower and to tilt the concentrates discharge side of the table while the head-motion side of the table turns on the universal joint and runner formed by the elements 43, e4, one of which is provided with a groove 59 in which the other is mounted to move axially without lateral displacement.

The universal joint truss 60 is formed in the arc of a circle concentric with the longitudinal rail 44 and its ends are fixed to the underside of the tableand its middle runs through and is supported by a hinged eye G1 carried by the loose horizontal pin 62 in the eye of the eye-bolt G3 that is in fixed relation to the post Lll. The hand set screw (Se when tightened prevents the truss from slipping or turning in the hinged eye which eye is slightly movable on the loose pin thus permitting lost motion so as to respond to the slight movement of the table.

vVhen the table has been adjusted by the hand nuts 57 the set screw Ga will be tightened thus preventing the table from tilting endwise on the pivotal mounting at the head-motion side. llfhe truss holds the table true and counteracts any tendency to unsteady motion of the table at the head motion side.

The straight truss rod (35 is adjustably attached by nuts 66 at one end to one of the posts 56 and at the other end to one of the beams 18 near the concentrates discharge side to vsteady the table at that side. Said rod 65 is arranged in the usual manner in diagonal relation to the riiiles so as not to interfere with the slight reciprocating movement of the table.

lt is to be noted that the table is supported at only three points, there being only a single support at one side and two adjustable supports at the other side and that said supports permit of a universal adjustment of the table to regulate the flow toward the tailings discharge end and the slope of the surface up which the concentrates must move against the wash water.

By the construction and arrangement shown the power for reciprocating the table is applied at abutting ends of diverging beams at the pivotal point of the table and at the head of said table and is distributed by said beams in a direct manner through the body of the table to the swinging side thereof so that the table is adjustable at the side opposite that to which the power is applied and said table at the pivotal point where the power is applied has free motion pivotally and reciprccally at the point where the power is applied, without materially changing the effect of such action upon the table. The heavy foundation necessary at the head-motion side of the table is not rew quired for the posts 56 which may be fas tened directly to the mill iloor 57 and consequently the usual frame extending under the table is dispensed with, thus greatly reduc ing shipping cost and inconvenience.

rlhe upper horizontal flange 18 on which the sills l? rest afford convenient means for attaching the sills to the beams by either bolts or screws indicated at 19 and 4S as may be found most convenient and satisfactory.

The practical operation of the machine will be understood from the foregoing. rlfhe reciprocating motion being applied at the pivotal and balancing point of the table operates the table along the balancing line and the truss, when the table is adjusted and the truss fastened at the balancing line, allows the table to respond to the reciprocating motion but holds the table against any tendency to rock at the head motion side.

l claim:-

l. vA concentrator table set forth comprising a body composed of a rillied deck, joists that run transversely with relation to ythe riftles of the deck, and diverging thrust beamswhich arev fastened to and support the joists; the adjacent ends of the thrust beams practically abutting together at the head motion side of the table at the center of gravity of such side; a supporting bearing for the adjacent ends of the thrust beam; adjustable links connected to the divergent ends of the beams; and means to apply Amotion to the abutting ends beams.

2. A concentrator comprising a riHed table provided with divergent beams having adjacent ends, the angle between which beams is bisected by a line' parallel with the rifiies of the table; a single central support at the adjacent ends of the beams, and two links at the concentrates discharge side of the table to uphold the table and to allow it to be reciprocated; and means to apply power at the adjacent ends of the beams to reciprocate the table in a path the traces of which are parallel with said line; said links being suspended from above the table and the table being thus supported at three points only.

3. in a concentrator, the combination with the concentrating table, of means to permit universal movement of one side of the table, swinging means to support the other side of the table, an'adjustable truss to allow and to prevent tilting movement of said table, and means to adjustably hold the truss. Y

4. The combination with a table mounted for reciprocation and adapted to tilt, of an adjustable truss hinged to the table, and means to adj ustably hold the truss in different table-tilting positions.

5. ln a concentrator the combination of a concentrating table mounted to tilt and reciprocate, beams fastened to the underside of the table and having their ends meet at one side and diverging thence to the concentrates side of the table, a support under the meeting ends of the beams, a post adjacent the diverging end of each beam, supporting means swung from the posts to the table to support the table and adapted to allow of the practically horizontal movement of the table, and a rod provided to steady-the concentrates side of the table, said rod fastened to one of the posts at one end and to the beam removed from the post at its other end.

6. In a concentrator the combination with the concentrating table of means to pivotally and reciprocatingly support one side of the table, swinging means to support the other side of the table, an adjustable truss to allow and to prevent tilting movement of the table and means to adjustably hold the truss.

7. rlhe combination with a concentrating table of a grooved sheave beneath the table, means to support the sheave, a rail in the groove to support the table at one side, means swung from above the table to support the table at they other side, means to reciprocate the table, a truss in the arc of a circle crosswise of the rail beneath the table and fastened to the table and means Vvertically beneath the rail to adjustably hold the truss.

8. A concentrator beams fastened to the under-side of the table and having adjacent ends at one side and diverging thence to the other side, a support under the adjacent ends of the beams, a rail and a sheave between the support and the adjacent ends to support said ends, links swung from above and supporting the beams at the other side of the table and supports for the links.

9. rThe combination with a table and means for pivotally and' reciprocatingly supporting the table, of a truss in the forinof an arc fixed to the table, a hinged eye through which the arc runs, a lined eye, a loose horizontal pin in the fixed eye to support the hinged eye, means to prevent the truss from slipping or turning in concentrating comprising a table g.

the hinged eye, and means to reciprocate the JACOB LAMPERT.

In presence of- JAMES R. TowNsnND, L. BELLE RICE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

` Washington, D. C. 

